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FINN Filter Sock For Permanent or Temporary Sediment Control
FINN can now supply you with a broad selection of both polypropylene and cotton filter sock for use with your FINN Bark & Mulch Blower. Expand both your markets and your operating season by getting involved with this unique erosion control application today.
The FINN Filter Sock is a mesh tube that is filled with organic filter material using a FINN Bark & Mulch Blower. The filled sock or tube is then placed perpendicular to sheet-flow runoff. It is oval to round in cross-section and provides a three-dimensional filter that retains sediment and other pollutants (e.g., suspended solids, nutrients, and motor oil) while allowing the cleaned water to flow through. It can be used in place of traditional sediment and erosion control tools such as the less effective silt fence or straw barriers. As there is greater surface area contact with soil than typical sediment control devices, the potential for runoff to create rills under the device and/or create channels carrying unfiltered sediment is reduced.
They are flexible and can be filled in place or filled and moved into position, making them especially useful on steep or rocky slopes where installation of other erosion control tools are not feasible. Additionally, they can be laid adjacent to each other, perpendicular to storm water flow, to reduce flow velocity and soil erosion. FINN Filter Socks can also be used on pavement as inlet protection for storm drains and to slow water flow in small ditches. They easily become part of the permanent landscape or they can be cut, so the organic material inside can be spread out into the surrounding area or left to decompose on its own.
The durable polypropylene geotextile (woven) sock engineered specifically for erosion and sediment control applications is offered in 8-inch, 18-inch, and 24-inch diameter sizes at 500 feet per roll. We also have a 9-inch biodegradable cotton filter sock available in 500 foot rolls.